== sanity test 184c: Concurrent write and layout swap ==== 11:48:18 (1730825298) 43+0 records in 43+0 records out 45088768 bytes (45 MB) copied, 0.569964 s, 79.1 MB/s 38+0 records in 38+0 records out 39845888 bytes (40 MB) copied, 0.508906 s, 78.3 MB/s ref file size: ref1(45088768), ref2(39845888) 2752+0 records in 2752+0 records out 45088768 bytes (45 MB) copied, 0.619428 s, 72.8 MB/s Copied 9191424 bytes before swapping layout...